Plug-in type detonator and fracturing machine

Abstract

The invention discloses a plug-in type detonator and a fracturing machine. The plug-in type detonator comprises a housing, a filling cavity, an igniting mechanism and an air inflating mechanism, wherein a filling cavity is formed in the housing; the housing is connected with the sealed igniting mechanism and the air inflating mechanism; the filling cavity is filled with supercritical oxygen or a carbon-containing organic substance or a reducing simple substance; the igniting mechanism comprises an electric heating wire, a guide wire, a guide wire through hole, a sealing base body and a plug-in slot; the electric heating wire is connected with the guide wire; the guide wire through hole is formed in the shaft center of the sealing base body; the plug-in slot is positioned in the upper part of the guide wire through hole; a positive electrode insertion needle and a negative electrode insertion needle are mounted in the plug-in slot; a positive electrode wire and a negative electrode wire of the guide wire pass through the guide wire through hole, and are separately connected with the positive electrode insertion needle and the negative electrode insertion needle; an inner threaded hole is formed in one end of the guide wire through hole; the inner threaded hole is matched with a hole-passing screw; and an inner sealing rubber ring is mounted on the bottom of the hole-passing screw. The plug-in type detonator has the advantages of being low in manufacturing cost, high in reaction material mixing uniformity, high in exothermal efficiency and good in transportation safety.

Description

technical field [0001] The invention belongs to the technical field of detonators, in particular to a plug-in detonator and a cracker. Background technique [0002] Gas blasting technology is to use the vaporization and expansion of easily vaporized liquid or solid substances to generate high-pressure gas, which makes the surrounding medium expand to do work and cause fragmentation. It has the characteristics of no open flame, safety and high efficiency. [0003] Carbon dioxide gas blasters are typical blasting equipment in gas blasting technology, and are widely used in mining, geological exploration, cement, steel, electric power and other industries, subways and tunnels, municipal engineering, underwater engineering, and emergency rescue. [0004] The existing gas blaster mainly includes a vaporization liquid storage pipe and a heating detonator installed in the vaporization liquid storage pipe; the heat generation detonator ignites and generates heat to vaporize easily v...

AI Technical Summary

Problems solved by technology

[0006] The detonator with the above structure has the following problems: 1. The thermal reactants to be filled in the detonator need to be processed by mixing, mixing, coiling or bagging, and the filling process is time-consuming. 2. During the filling process of the detonator, the oxidant and reducing agent are prone to uneven mixing, resulting in low heat release efficiency; 3. The thermal reaction material needs to be mixed and filled in advance, and the temperature during transportation is too high. It is highly likely to cause combustion or explosion, and has a greater potential safety hazard; 4. Due to the delay of the detonating material or other situations, it is easy to appear the situation of squibs, and it is impossible to judge the cause of the squibs, so it cannot be eliminated by rowing the squibs Potential safety hazard; 5. The detonation method of the existing gas blaster uses a solid activator to burn to generate high temperature, which directly conducts heat to the liquid carbon dioxide, causing the liquid carbon dioxide to gasify and expand, and the heat absorption efficiency of the liquid carbon dioxide is low; 6. The heat release of the detonator The speed is slow, the chemical reaction is insufficient, the thermal release efficiency is low, the pressure of the liquid is relatively small after gasification, and the blasting power is small; 7. After the blasting, the reactants in the detonator produce a large amount of toxic and harmful gases, such as sulfur Gases such as hydrogen, sulfur dioxide, nitric oxide, and nitrogen dioxide bring relatively large poisonous pollution to the blasting site

[0007] In addition, since the lead wire of the conventional detonator contains two exposed terminals, the wiring needs to be connected separately, and the wiring process takes a long time; in addition, the exposed terminals are prone to the risk of electrostatic contact, and there is a risk of electrostatic detonation

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